I had a bit of a play with a run time clock module yesterday. It's an I2C device that I got as a cheap import from Hong Kong using the DS1307 chip. Basically once you've got the right libary it's really simple to use, you don't even need to set the address, just set the date and time in code and read it back when you need it. One of the key things to watch out for is some of these boards have a simple battery charge circuit so you'll need to use a LIR2032 not a CR2032. Here's a bit mor ...

Here is a video I posted with the description copied below of a simple slideshow project I made. It is rather easy for a beginner to put together and has some potential for adding more complex features. It can be done with any of the display shields or breakout boards available.
Created a photo slideshow to test out my Adafruit 1.8" TFT Shield with an Arduino Uno. I built around the sample function for drawing bitmaps in the Adafruit_ST7735 library to automatically rotate through al ...

In this project using only an Arduino with an Ethernet shield. I’ll be controlling one LED and a servo, but you can apply this method to control a DC motors, buzzers, relays, stepper motors, etc.. Check this Video tutorial below ! (Includes demonstration)
Overview: When you upload the the code provided in this tutorials. it creates a webserver in your LAN and you simply use the IP to access that webserver through your browser. After that it shows a webpage similar ...

For small robotic and other projects you can pick up small 28BYJ-48 stepper motors and gearbox with ULN2003 driver boards quite cheaply. These motors are used in comercial projects like washing machines etc hence are made in very large quantities and are cheap. The gearbox means that they have a decent torque and can move a small robot ok. Because these have a gearbox I'll need to include a "home" sensor to work out when they are pointing at the top as my application I need to know the absolute ...